Which question to answer?
Scientific notation is another way to write a number. In scientific notation, the letter E is used to mean "10 to the power of." For example, 1.314E+1 means 1.314 * 101 which is 13.14 .
Answer:
5x+3
Step-by-step explanation:

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6 + 12 = 18
18/9 = 2
The answer is 2
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Answer:
x=9/20 or x=0.45
Step-by-step explanation: